Caution / Notice / Hint

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during engine unit removal/installation are shown below.

NECESSARY PROCEDURE AFTER PARTS REMOVED/INSTALLED/REPLACED

Replaced Part or Performed Procedure	Necessary Procedure	Effect/Inoperative Function when Necessary Procedure not Performed	Link
Battery terminal is disconnected/reconnected	Perform steering sensor zero point calibration	Lane departure alert system (w/ Steering Control)	Refer to INITIALIZATION [03/2017 - 10/2020]
	Perform steering sensor zero point calibration	Pre-collision system	Refer to INITIALIZATION [03/2017 - 10/2020]
	Memorize steering angle neutral point	Parking Assist Monitor System	Refer to INITIALIZATION [03/2017 - ]
Replacement of ECM	Vehicle Identification Number (VIN) registration	MIL comes on	Refer to REGISTRATION [03/2017 - ]
Replacement of ECM	ECU communication ID registration (Immobiliser system)	Engine start function	Refer to REGISTRATION [03/2017 - 09/2019] 1 Refer to REGISTRATION [03/2017 - 09/2019] 2
Replacement of engine assembly Gas leak from exhaust system is repaired Replacement of throttle body with motor assembly Replacement of cam timing control motor with EDU assembly Removal and installation of a cam timing control motor with EDU assembly Replacement of camshaft timing gear assembly Removal and installation of a camshaft timing gear assembly Replacement of cylinder head sub-assembly Replacement of camshaft (for intake or exhaust camshaft) Replacement of camshaft timing exhaust gear assembly Replacement of port fuel injector assembly Replacement of direct fuel injector assembly Replacement of fuel pump assembly (for high pressure side) Replacement of engine coolant temperature sensor Replacement of spark plug Replacement of ignition coil assembly Replacement of EGR valve assembly Replacement of knock control sensor Replacement of piston or piston ring Replacement of air fuel ratio sensor (sensor 2)	Inspection After Repair	Poor idle, etc. Engine start function, etc.	Refer to INITIALIZATION [03/2017 - 09/2019]
Replacement of automatic transaxle assembly	Reset memory Input transaxle compensation code into ECM Perform road test to allow ECM to learn	Large shift shock Deterioration of fuel efficiency	Refer to INITIALIZATION [03/2017 - 08/2018] for UB80E Initialization Refer to REGISTRATION [03/2017 - ] for UB80E Registration
Replacement of ECM (If possible, read the transaxle compensation code from the previous ECM)	Reset memory*3 Transfer transaxle compensation code Perform road test to allow ECM to learn
Replacement of ECM (If impossible, read the transaxle compensation code from the previous ECM)	Reset memory*3 Reset transaxle compensation code Perform road test to allow ECM to learn
Replacement of ECM*1	Code registration (Smart key System (for Start Function)	Wireless door lock control system Smart key system (for Entry Function) Smart key system (for Start Function) Steering lock function	Refer to REGISTRATION [03/2017 - 09/2019]
Replacement of ECM*2	Code registration (Immobiliser system (w/o Smart Key System))	Wireless door lock control system Engine start	Refer to REGISTRATION [03/2017 - 09/2019]
Suspension, tires, etc. (The vehicle height changes because of suspension or tire replacement)	Rear television camera assembly optical axis (Back camera position setting)	Parking assist monitor system	For Initialization: Refer to INITIALIZATION [03/2017 - ] For Calibration: Refer to CALIBRATION [03/2017 - 06/2017]
Front wheel alignment adjustment	Perform system variant learning and acceleration sensor zero point calibration.	VSC disabled or malfunctioning DTCs are output Slip indicator light illuminated ABS warning light illuminated	Refer to CALIBRATION [03/2017 - 06/2017]

*1: w/ Smart Key System
*2: w/o Smart Key System
*3: When the ECM is replaced with a new one, reset memory is unnecessary.